Abstract
<jats:p>Digitalization creates new opportunities for the formation of digital companies and platforms. Adaptation of antitrust legislation to the needs of the digital economy requires the development of legal instruments to counter anticompetitive behavior. The purpose of the paper is to summarize research and practice of developing effective legal remedies against abuse of a dominant position of digital platforms in light of their multifaceted nature. The research methods used are general scientific methods, analysis of global experience of antitrust regulation of digital platforms that abuse a dominant position. Changes in the contours of business models of digital platforms are identified, manifested in network effects, the use of collected data, pricing algorithms, artificial intelligence and leading to the establishment of market power and restriction of competition in the market through manipulation, discrimination against competitors, suppliers and consumers. Trends in the application of legal remedies for competition in digital markets by antitrust authorities are considered: emphasis on preliminary behavioral conditions at an early stage of cases; a combination of behavioral and structural conditions to achieve the maximum effect on competition; The study takes into account economic and legal analysis of platform abuse in the marketplace. The importance of incorporating restorative measures to protect competition into legal remedies that may require structural interventions in digital platforms is noted. The results of the study can be used in the practice of antitrust regulation of digital markets.</jats:p>